Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures

Mohamed Noureldin; Jinkoo Kim

doi:10.1007/978-3-030-34252-4_1

Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures

Mohamed Noureldin
, Jinkoo Kim

Department of Civil, Architectural Engineering and Landscape Architecture

Sungkyunkwan University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

In this research, a seismic fragility evaluation is used to assess the seismic performance of low-rise RC structures retrofitted with self-centering post-tensioned pre-cast concrete (SC-PC) frame with enlarged beam-ends. The seismic performance of the retrofitted structures is verified by constructing fragility curves for the retrofitted and retrofitted structure. Thirty natural time-history earthquake records are generated based on a design response spectrum to construct the seismic fragility curves. Nonlinear time history (NLTH) analysis is used to obtain the median structural demand. Limit states are defined based on seismic guidelines to represent the median structural capacity. The relation between the demand and capacity is modeled as a lognormal cumulative density function in a closed-form equation. The results of the study show that the SC-PC frame is effective in seismic retrofitting and significantly improves the structure seismic fragility for all limit states. In addition, the results show that the most significant improvement is found for the collapse-prevention limit state where severe earthquakes are expected.

Original language	English
Title of host publication	Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE
Editors	Hany El-Naggar, Khalid El-Zahaby, Hany Shehata
Publisher	Springer Science and Business Media B.V.
Pages	1-12
Number of pages	12
ISBN (Print)	9783030342517
DOIs	https://doi.org/10.1007/978-3-030-34252-4_1
State	Published - 2020
Event	3rd GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, GeoMEast 2019 - Egypt, Egypt Duration: 10 Nov 2019 → 15 Nov 2019

Publication series

Name	Sustainable Civil Infrastructures
ISSN (Print)	2366-3405
ISSN (Electronic)	2366-3413

Conference

Conference	3rd GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, GeoMEast 2019
Country/Territory	Egypt
City	Egypt
Period	10/11/19 → 15/11/19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Access to Document

10.1007/978-3-030-34252-4_1

Cite this

Noureldin, M., & Kim, J. (2020). Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures. In H. El-Naggar, K. El-Zahaby, & H. Shehata (Eds.), Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE (pp. 1-12). (Sustainable Civil Infrastructures). Springer Science and Business Media B.V.. https://doi.org/10.1007/978-3-030-34252-4_1

Noureldin, Mohamed ; Kim, Jinkoo. / Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures. Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE. editor / Hany El-Naggar ; Khalid El-Zahaby ; Hany Shehata. Springer Science and Business Media B.V., 2020. pp. 1-12 (Sustainable Civil Infrastructures).

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abstract = "In this research, a seismic fragility evaluation is used to assess the seismic performance of low-rise RC structures retrofitted with self-centering post-tensioned pre-cast concrete (SC-PC) frame with enlarged beam-ends. The seismic performance of the retrofitted structures is verified by constructing fragility curves for the retrofitted and retrofitted structure. Thirty natural time-history earthquake records are generated based on a design response spectrum to construct the seismic fragility curves. Nonlinear time history (NLTH) analysis is used to obtain the median structural demand. Limit states are defined based on seismic guidelines to represent the median structural capacity. The relation between the demand and capacity is modeled as a lognormal cumulative density function in a closed-form equation. The results of the study show that the SC-PC frame is effective in seismic retrofitting and significantly improves the structure seismic fragility for all limit states. In addition, the results show that the most significant improvement is found for the collapse-prevention limit state where severe earthquakes are expected.",

author = "Mohamed Noureldin and Jinkoo Kim",

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Noureldin, M & Kim, J 2020, Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures. in H El-Naggar, K El-Zahaby & H Shehata (eds), Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE. Sustainable Civil Infrastructures, Springer Science and Business Media B.V., pp. 1-12, 3rd GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, GeoMEast 2019, Egypt, Egypt, 10/11/19. https://doi.org/10.1007/978-3-030-34252-4_1

Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures. / Noureldin, Mohamed; Kim, Jinkoo.
Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE. ed. / Hany El-Naggar; Khalid El-Zahaby; Hany Shehata. Springer Science and Business Media B.V., 2020. p. 1-12 (Sustainable Civil Infrastructures).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures

AU - Noureldin, Mohamed

AU - Kim, Jinkoo

PY - 2020

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N2 - In this research, a seismic fragility evaluation is used to assess the seismic performance of low-rise RC structures retrofitted with self-centering post-tensioned pre-cast concrete (SC-PC) frame with enlarged beam-ends. The seismic performance of the retrofitted structures is verified by constructing fragility curves for the retrofitted and retrofitted structure. Thirty natural time-history earthquake records are generated based on a design response spectrum to construct the seismic fragility curves. Nonlinear time history (NLTH) analysis is used to obtain the median structural demand. Limit states are defined based on seismic guidelines to represent the median structural capacity. The relation between the demand and capacity is modeled as a lognormal cumulative density function in a closed-form equation. The results of the study show that the SC-PC frame is effective in seismic retrofitting and significantly improves the structure seismic fragility for all limit states. In addition, the results show that the most significant improvement is found for the collapse-prevention limit state where severe earthquakes are expected.

AB - In this research, a seismic fragility evaluation is used to assess the seismic performance of low-rise RC structures retrofitted with self-centering post-tensioned pre-cast concrete (SC-PC) frame with enlarged beam-ends. The seismic performance of the retrofitted structures is verified by constructing fragility curves for the retrofitted and retrofitted structure. Thirty natural time-history earthquake records are generated based on a design response spectrum to construct the seismic fragility curves. Nonlinear time history (NLTH) analysis is used to obtain the median structural demand. Limit states are defined based on seismic guidelines to represent the median structural capacity. The relation between the demand and capacity is modeled as a lognormal cumulative density function in a closed-form equation. The results of the study show that the SC-PC frame is effective in seismic retrofitting and significantly improves the structure seismic fragility for all limit states. In addition, the results show that the most significant improvement is found for the collapse-prevention limit state where severe earthquakes are expected.

UR - https://www.scopus.com/pages/publications/85102203869

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DO - 10.1007/978-3-030-34252-4_1

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SN - 9783030342517

T3 - Sustainable Civil Infrastructures

SP - 1

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BT - Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE

A2 - El-Naggar, Hany

A2 - El-Zahaby, Khalid

A2 - Shehata, Hany

PB - Springer Science and Business Media B.V.

T2 - 3rd GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, GeoMEast 2019

Y2 - 10 November 2019 through 15 November 2019

ER -

Noureldin M, Kim J. Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures. In El-Naggar H, El-Zahaby K, Shehata H, editors, Innovative Solutions for Soil Structure Interaction - Proceedings of the 3rd GeoMEast International Congress and Exhibition, Egypt 2019 on Sustainable Civil Infrastructures – The Official International Congress of the Soil-Structure Interaction Group in Egypt SSIGE. Springer Science and Business Media B.V. 2020. p. 1-12. (Sustainable Civil Infrastructures). doi: 10.1007/978-3-030-34252-4_1

Seismic Fragility Evaluation of Retrofitted Low-Rise RC Structures

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